To provide a floating separation type scale remover solving problems in using the scale remover such as the maintenance of a filter having inferior convenience and securing of a filtration area and also preventing the lowering of the efficiency due to ripples when bathing.

This floating separation type scale remover carries hot water sucked from an intake 4 located near a water surface, to the upper part of a tilted plate 7 for flowing into a separation chamber by a rotary vane 6 of a motor 5, and makes it flow into a floating separation chamber 1 located higher than the water surface to isolatedly store the scale and oil content therein and separate the scale from hot water.